Casandra
Casandra Test Code AR65296Version 1 (DRAFT)
Performing Lab
Tyrosine, Plasma (Change effective as of 07/21/25: Refer to 0080336)
Also known as: TYRO
Clinical Use
Order TestUse
This test measures the concentration of tyrosine in plasma. It was previously used but as of July 21, 2025, ordering should refer instead to test code 0080336 (Phenylalanine and Tyrosine) which combines both analytes and is intended for monitoring patients with phenylketonuria (PKU).
Special Instructions
Test has been changed effective July 21, 2025; users should now refer to test code 0080336 (Phenylalanine and Tyrosine).
Limitations
Not provided.
Test Details
Methodology
Other
Biomarkers
Not provided.
Result Turnaround Time
Not provided.
Related Documents
For more information, please review the documents below
Specimen Requirements
Not provided.
Related Tests
Other tests from different labs that may be relevant
Tyrosine
Quest Diagnostics
Phenylalanine and Tyrosine, Plasma
Mayo Clinic Lab
Phenylalanine and Tyrosine
Quest Diagnostics
Phenylalanine and Tyrosine, Blood Spot
Mayo Clinic Lab
Phenylalanine and Tyrosine, Self-Collect, Blood Spot
Mayo Clinic Lab
Phenylalanine, Quantitative, Plasma
Labcorp
Invitae Elevated Tyrosine (Tyrosinemia) Panel
Invitae Corporation
Tyrosinemia Follow-Up Panel, Self-Collect, Blood Spot
Mayo Clinic Lab
Tyrosinemia Follow Up Panel, Blood Spot
Mayo Clinic Lab
Tyrosine Disorders Gene Panel, Varies
Mayo Clinic Lab